Know Your Environment. Protect Your Health.

Nitrite

North Penn Water Authority

Nitrite, closely related to the fertilizer chemical nitrate, comes from urban runoff and from fertilizer applied to agricultural lands to pollute drinking water. Nitrite is significantly more toxic than nitrate. Excessive nitrite in water can cause oxygen deprivation in infants and increase the risk of cancer.

 

151

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND320ND
2019ND300ND
2020ND300ND
2021ND260ND
2022ND220ND
2023ND110ND

ppm = parts per million

State, National, and Health Guidelines for Drinking Water

EPA Maximum Contaminant
Level (MCL): 1 ppm

The legal limit for nitrite, established in 1991, was based on the rate of conversion of ingested nitrate into nitrite in adults. This limit may not fully protect against the risk of cancer due to nitrite exposure.

ppm = parts per million

All test results

Date Lab ID Result
2018-01-2220180287ND
2018-01-2220180288ND
2018-01-2220180289ND
2018-01-2220180290ND
2018-04-0220181248ND
2018-04-0220181249ND
2018-04-0220181250ND
2018-04-0220181251ND
2018-04-0220181252ND
2018-04-0220181253ND
2018-04-0220181254ND
2018-05-1420181906ND
2018-05-1420181907ND
2018-05-1420181908ND
2018-05-1420181910ND
2018-05-1420181909ND
2018-06-0420182087ND
2018-07-2320182808ND
2018-07-2320182809ND
2018-07-2320182810ND
2018-07-2320182811ND
2018-07-2320182812ND
2018-07-2320182813ND
2018-07-2320182814ND
2018-08-1320183084ND
2018-08-1320183085ND
2018-08-1320183086ND
2018-08-1320183087ND
2018-08-1320183088ND
2018-10-0120183729ND
2018-10-0120183730ND
2018-11-0720184247ND
2019-01-2120190216ND
2019-01-2120190217ND
2019-01-2120190218ND
2019-04-0120191189ND
2019-04-0120191190ND
2019-04-0120191191ND
2019-04-0120191192ND
2019-04-0120191193ND
2019-04-0120191194ND
2019-05-219054400-01ND
2019-05-219054400-02ND
2019-05-219054400-03ND
2019-05-219054400-04ND
2019-05-219054400-05ND
2019-06-259065221-01ND
2019-08-0520192971ND
2019-08-0520192972ND
2019-08-0520192973ND
2019-08-0520192974ND
2019-08-1920193286ND
2019-08-1920193281ND
2019-08-1920193287ND
2019-08-1920193282ND
2019-08-1920193283ND
2019-08-1920193284ND
2019-08-1920193285ND
2019-11-1820194550ND
2019-11-1820194551ND
2019-11-1820194552ND
2019-11-1820194553ND
2020-01-0621347777.00ND
2020-01-0621347779.00ND
2020-01-0621347781.00ND
2020-01-0621347783.00ND
2020-05-0522023914.00ND
2020-05-0522023916.00ND
2020-05-0522023918.00ND
2020-05-0522023920.00ND
2020-05-0522023922.00ND
2020-05-0522023924.00ND
2020-06-0122216036.00ND
2020-06-0122216038.00ND
2020-06-0122216040.00ND
2020-06-0122216042.00ND
2020-06-0122216044.00ND
2020-07-0622417019.00ND
2020-07-0622417021.00ND
2020-07-0622417023.00ND
2020-07-0622417025.00ND
2020-07-0622417027.00ND
2020-07-1322607211.00ND
2020-07-1322607213.00ND
2020-07-1322607215.00ND
2020-07-1322607217.00ND
2020-07-1322607219.00ND
2020-07-1322607221.00ND
2020-10-0523182488.00ND
2020-10-0523182490.00ND
2020-10-0523182492.00ND
2020-10-0523182494.00ND
2021-01-0423712429.00ND
2021-01-0423712431.00ND
2021-01-0423712433.00ND
2021-01-0423712435.00ND
2021-04-0524060837.00ND
2021-04-0524060840.00ND
2021-04-0524060843.00ND
2021-04-0524060846.00ND
2021-05-0524248325.00ND
2021-05-0524248328.00ND
2021-05-0524248331.00ND
2021-05-0524248334.00ND
2021-05-0524248337.00ND
2021-05-1824438661.00ND
2021-07-0624638970.00ND
2021-07-0624638972.00ND
2021-07-0624638974.00ND
2021-07-0624638976.00ND
2021-07-0624638978.00ND
2021-08-1725023330.00ND
2021-09-0825023971.00ND
2021-09-0825023973.00ND
2021-09-0825023975.00ND
2021-10-0425221026.00ND
2021-10-1925404560.00ND
2021-10-1925404563.00ND
2022-02-0926117626.00ND
2022-02-0926117628.00ND
2022-02-0926117630.00ND
2022-04-2726464114.00ND
2022-04-2726464116.00ND
2022-04-2726464118.00ND
2022-04-2726464120.00ND
2022-05-0326648478.00ND
2022-05-0426464703.00ND
2022-05-0426464705.00ND
2022-05-0426464707.00ND
2022-05-1626648480.00ND
2022-05-1626648482.00ND
2022-05-1626648484.00ND
2022-08-0327037754.00ND
2022-08-0327037756.00ND
2022-08-0327037758.00ND
2022-08-0327037760.00ND
2022-08-0327037762.00ND
2022-08-0327037764.00ND
2022-11-0227642039.00ND
2022-11-0227642041.00ND
2023-01-1928173393.00ND
2023-02-2228349559.00ND
2023-04-2628702446.00ND
2023-04-2628702448.00ND
2023-04-2628702450.00ND
2023-05-0228900776.00ND
2023-08-2229497674.00ND
2023-08-2229497676.00ND
2023-08-2229497678.00ND
2023-08-2229497680.00ND
2023-11-1330071587.00ND